106641191 has 2 divisors, whose sum is σ = 106641192. Its totient is φ = 106641190.

The previous prime is 106641181. The next prime is 106641193. The reversal of 106641191 is 191146601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106641191 - 2⁶ = 106641127 is a prime.

It is a super-2 number, since 2×106641191² = 22744687235796962, which contains 22 as substring.

Together with 106641193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106641193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53320595 + 53320596.

It is an arithmetic number, because the mean of its divisors is an integer number (53320596).

Almost surely, 2^106641191 is an apocalyptic number.

106641191 is a deficient number, since it is larger than the sum of its proper divisors (1).

106641191 is an equidigital number, since it uses as much as digits as its factorization.

106641191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 106641191 is about 10326.7221808278. The cubic root of 106641191 is about 474.2146816641.

Adding to 106641191 its reverse (191146601), we get a palindrome (297787792).

The spelling of 106641191 in words is "one hundred six million, six hundred forty-one thousand, one hundred ninety-one".